“Don’t go to that house, bhangis (sweepers) live in it.” I heard my friend Neeraj’s voice from the bushes, advising me. He was a Brahmin, the uppermost caste in the caste hierarchy and knew that touching a bhangi—a lower caste—would pollute him, for which he would have to take bath. Bhangi is a derogatory term for members of the lower caste Balmiki community, whose main occupation, as per caste hierarchy, is sweeping. Upper caste Hindus believe bhangis do 'polluting' work, which makes them untouchables.